Periodic Table of Investment Returns: 2002-2021
Callan, an investment resource website, provides this color-coordinated chart that highlights the importance of having a diversified portfolio.
You can find the full chart/commentary here: https://www.callan.com/research/2021-classic-periodic-table/#
Here is a key that tells you the definition of each category:
During the years that the high performing categories do poorly, it's essential to have holdings in those that do perform well to offsite the losses. That's how you make gains along the ups and downs during the long-term!